I Had Heard that websites having W3 validation is good as per Seo point of view but I Don't know what is W3 validation and how to implement it..

W3 Validator let you check the HTML errors present in your coding for a website. You don't have to implement it. Just go to their website and check for issues and warning and resolve them for better website functioning. You work is done.

In addition to the image alternate attribute, there are several other HTML standard tags, that when properly used (in accordance with W3C guidelines for valid coding of web pages), are clearly SEO best practices as well. Whether it’s proper use of header tags, bolding, bullet point implementation, or any one of dozens upon dozens of elements to HTML, it’s clear that a site IS better off from an SEO perspective, when that site meets those standards.Heck, if a site is so botched up in the validation process, it’s even possible that Google won’t even be able to index it.

W3C stands for the World Wide Web Consortium who are the recognized standards organization for the world wide web. This organization was founded by Tim Berners-Lee and is run by a full-time staff to continue to develop and maintain web standards. These standards are then used to help guide web developers and browsers to develop code that lives up to certain standards.

W3C stands for the World Wide Web Consortium who are the recognized standards organization for the world wide web. This organization was founded by Tim Berners-Lee and is run by a full-time staff to continue to develop and maintain web standards. These standards are then used to help guide web developers and browsers to develop code that lives up to certain standards.

We in the “web world” tend to use scary words and acronyms when talking about what we do and it is very possible you have heard of “W3C” or “W3C standards” or maybe even “W3C validation” and wondered what in the world a this strange jumble of letters and numbers has to do with your website! I’ll translate this from “Tech” into English for you.

W3C stands for Wide Web Consortium, a company that develops standards for code on the web. Validation works to check the HTML code for proper markup; thus making sure that all pages of a website are built in accordance with Web standards.